Absence of Magnetic Ordering in the Spin Liquid Candidate Ca3Cu2GeV2O12

Published

December 27, 2019

Author(s)

Joey A. Lussier, Brooke N. Richtik, Cole Mauws, Jeffrey W. Lynn, Chris R. Wiebe

Abstract

Typically, quantum spin liquid candidates can be found in materials with a combination of geometrical frustration along with low spin. Due to its spin of S=1/2 the copper (II) ion is often present in the discussion on spin liquid candidates. The solid state compound Ca₃Cu₂GeV₂O₁₂ is a material that crystallizes in the garnet structure (s.g. #230, Ia-3d), where 3-dimensional frustration is known to occur. Heat capacity has shown a lack of magnetic ordering down to 0.35 K, confirmed with low temperature neutron diffraction to 0.07 K. This system displays a Weiss temperature of -0.93(1) K indicating net antiferromagnetic interactions and significant J₁-J₂ competition causing frustration. Using both neutron and X-ray diffraction along with heat capacity and magnetometry, the work presented here shows Ca₃Cu₂GeV₂O₁₂ has potential as a new spin liquid candidate.

Citation

Journal of Physics Condensed Matter

Volume

32

Issue

13

Pub Type

Journals

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Keywords

Spin Liquid, Exchange Frustration, Absence of Magnetic Order, Cubic garnet

Citation

Lussier, J. , Richtik, B. , Mauws, C. , Lynn, J. and Wiebe, C. (2019), Absence of Magnetic Ordering in the Spin Liquid Candidate Ca₃Cu₂GeV₂O₁₂, Journal of Physics Condensed Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928809 (Accessed December 11, 2024)